Science & Mathematics - 15 October 2006

2006-10-15 14:17:18 · 7 answers · asked by Anonymous in Other - Science

2006-10-15 14:14:52 · 4 answers · asked by bonnersky2005@sbcglobal.net 1 in Astronomy & Space

2006-10-15 14:13:24 · 11 answers · asked by Amit B 1 in Astronomy & Space

2006-10-15 14:12:51 · 7 answers · asked by Anonymous in Other - Science

im more of a visual learner so heres a conversion:
7.04 grams of C5H5N
ive coverted it to moles, which is 0.09 i think
so i guess just converting moles to molecules is my question.

2006-10-15 14:12:05 · 6 answers · asked by lo 2 in Chemistry

For the past 20 years, the high temperature on april 15th has averaged µ = 62 degrees with a standard deviation of σ = 8. Last year, the high temperature was 66 degrees. Based on this information, last year's temperature on april 15th was____.

A. a little above average
B. far above average
C. Above average, but exact value cant be measured
D. Cant be determined

(The correct answer is A)

2006-10-15 14:08:52 · 5 answers · asked by .......... 4 in Mathematics

a company claims that they came up with a battery that has twice the power as any other one on the market. If u put this new battery in ur old flashlight would your flashlight be brighter? And would u expect it to last longer?

2006-10-15 14:08:21 · 8 answers · asked by Greg P 1 in Physics

why or why not............. what might happen if cell membrane were permeable insted of selective;y permeable?

2006-10-15 14:08:09 · 2 answers · asked by Anonymous in Biology

In the circuit, the capacitor has a capacitance of 2.5 µF and the resistor has a resistance of 0.5 MΩ. Before the switch is closed, the potential drop across the capacitor is 12 V. Switch S is closed at t=0. What is the current in R immediately after switch S is closed?

2006-10-15 14:06:31 · 2 answers · asked by Techdestroyer 1 in Engineering

2006-10-15 14:06:16 · 4 answers · asked by Mike F 1 in Other - Science

In a very cold weather day when temperature is -20C, what is the amount of heat needed to warm to body temperature37C,the .50L of air exchanged w/ each breath?Assume the specific heat of Air=1020j/kg K, 1L of air has a mass of 1.3x 10 raise to neg.3kg. How much heat is loss per hour if the respiration rate is 20 breaths/min?

2006-10-15 14:05:58 · 1 answers · asked by Anonymous in Physics

two boxes, connected together one is 65kg the other 35kg, a force pulling on the 35kg box of 250N at 40degrees in a frictionless enviro, what is the acceleration and what is the tension between the 2 boxes

2006-10-15 14:05:31 · 2 answers · asked by Anonymous in Physics

would you would you be able to detect the lemonade ........ useing that answer what might happen if poisonous chemicals were dummped in a lake from witch a town drws its own water supplies?

2006-10-15 14:05:14 · 5 answers · asked by Anonymous in Biology

I can not understand if we are unable to reach outside our galaxy, where do the pictures come from? Satalites can not go beyond this...

2006-10-15 14:03:16 · 12 answers · asked by ninetynine4one 2 in Astronomy & Space

A 500 kg cart (including the passenger) coasts down a 37° incline that is 50.0 m long. The cart is stopped by compressing a spring at the end of the incline. The effective coefficient of friction between the cart and the incline is 0.400. While stopping, the magnitude of the acceleration should not exceed 10g. Choose a spring (essentially choose a spring constant) and an appropriate stopping distance so that this condition is satisfied.

2006-10-15 14:02:02 · 2 answers · asked by Anonymous in Physics

Sr(CHO2)2
ZnS
Cs2SO4
FeF3
K2CrO4
Cr2(SO4)3
Ag3N
Cd3P2

2006-10-15 14:01:55 · 4 answers · asked by Anonymous in Chemistry

I have the calculatar to finish this, but don't know how to enter it. Could someone who does help me out.

3.0x10^8/660

Thanks

2006-10-15 13:55:02 · 8 answers · asked by guineveres_white_wave 2 in Mathematics

in my science experiment, you have a glass of cold water, and on top of that, a layer of canola oil (which floats above the water because it is less dense). if you pour a little bit of salt over it, the salt sinks, and some of the oil encases the grains as it sinks. when the salt disolves, the oil once more floats to the surface.

but why is the oil attracted to the salt in the first place?

2006-10-15 13:54:42 · 1 answers · asked by haha183 2 in Other - Science

there is gravititional and centripetal force in atom.....i think it is planet in solar system.is that true?

2006-10-15 13:52:13 · 6 answers · asked by pouli 2 in Physics

i am in Algebra 1 and im trying to solve a math equation (7/8)x-(1/4) (3/4)x=(1/16) x the parenthesie are suppost to be fractions i have to solve these by clearing the fraction and i keep comming up with the wrong #s

2006-10-15 13:51:17 · 7 answers · asked by NONE N 1 in Mathematics

2006-10-15 13:50:16 · 3 answers · asked by sweet_backseat_kisses 1 in Chemistry

its easy to make, you need watter, and electricity.

2 things we will never run out of.

2006-10-15 13:46:17 · 6 answers · asked by gotslayer 2 in Chemistry

at maximum how many regions in space can be created by the intersection of 5 planes? answer is 26, need to know why? prove it please!! 10 points for steps leading up to right answer! proof needed

2006-10-15 13:45:44 · 2 answers · asked by need help! 3 in Mathematics

2006-10-15 13:45:20 · 5 answers · asked by moocow50000 1 in Biology

2006-10-15 13:44:43 · 6 answers · asked by Anonymous in Biology

it's 8 letters

2006-10-15 13:44:34 · 3 answers · asked by Bailey 2 in Physics

chromosome?

2006-10-15 13:41:34 · 1 answers · asked by sweet_backseat_kisses 1 in Biology

2006-10-15 13:38:20 · 8 answers · asked by GARRY M 1 in Earth Sciences & Geology

(a) what is the bag's velocity?
m/s
(b) how far has the bag fallen?
m
(c) how far below the helicopter is the bag?

2006-10-15 13:38:04 · 3 answers · asked by hi 2 in Physics

measured in seconds. Find the acceleration at two seconds.
please explain steps. thank you.
A. 342
B. 18
C. 288
D. 90

2006-10-15 13:35:51 · 2 answers · asked by j a 1 in Mathematics